Wideband printed dipole antenna with embedded loops and coupling patches for digital TV signal reception

Planar coaxial fed wideband printed dipole antenna is designed to satisfy DTV signal reception needs. This antenna consists of two asymmetric loops separated by step shape feed gap. These loops contains two inner loops which are connected to external loops with the help of rectangular coupling patches. Two resonant modes are excited due to the length of the antenna and length of step feed gap. Operating bandwidth is enhanced due to the addition of the inner loop and coupling patch. Various parameters such as bandwidth, return loss, antenna gain, and radiation efficiency of proposed antenna are simulated and discussed. The simulated radiation pattern is omnidirectional matching to the conventional dipole antenna. The proposed antenna has an antenna gain varying from -8 to -10 dB and operating bandwidth is found to be 470-925 MHz with return loss better than 7.35 dB. Therefore, the proposed antenna is very much compatible to digital television signal receiving applications.